4 ms·
Not the main point of the paper, but >it is argued that the COMPAS score is not biased against blacks because the likelihood of recidivism among high-risk offe
by gizmo686 9y ago
Not the main point of the paper, but
>it is argued that the COMPAS score is not biased against blacks because the likelihood of recidivism among high-risk offenders is the same regardless of race (predictive parity), it can discriminate between recidivists and nonrecidivists equally well for white and black defendants as measured with the area under the curve of the receiver operating characteristic, AUC-ROC (accuracy equity), and the likelihood of recidivism for any given score is the same regardless of race (calibration)
Simpon's paradox [0], probably one of the most insidious problems of well intentioned statistics.
[0] https://en.wikipedia.org/wiki/Simpson%27s_paradox https://en.wikipedia.org/wiki/Simpson%27s_paradox
- fvdessen 9y agoInterestingly, in the paper the human assessments shows the exact same biases.
- harryh 9y agoHow is this Simpson's Paradox?
- gizmo686 9y agoThere is a corralation across the entire population that does not exist in 'bucket' of the population. More importantly, the bucketing involved is reasonable and has explanatory power. (If this were not the case, you might have picked the buckets specifically to get this result. Still an example of Simpsons Paradox, but not interesting.)